8.5 Molecular Polarity

Course Menu
Chad's High School Chemistry Master Course

Quizzes, Study Guides, Chapter Tests, and More!

Bond Polarity

Polar bonds, due to differences in electronegativity result in one atom being partially positive (𝛅+) and one partially negative (𝛅-). The larger the difference in electronegativity, the more polar the bond.

Determine the more polar bond in each pair:

C-O vs C-F               C-F vs C-Cl

electronegativity trend periodic table

Molecular Polarity

Molecules with more than 1 polar bond may be termed polar or nonpolar depending on how polar each bond is
and the geometry in which they are arranged.


– If the polarity of all the individual bond dipoles ‘cancel’ the molecule is nonpolar.


– If the polarity of all the individual dipoles do not cancel then the molecule is polar.

molecular polarity 01
molecular polarity 02
molecular polarity 03
molecular polarity 04
molecular polarity 05
molecular polarity 06
molecular polarity 07